The PDT skin rejuvenation machine developed by company employ the LED originally imported from USA with above 99% purity and narrow spectrum red, blue, yellow and green light sources. The genetic biological wave light sources are utilized to rapidly effect hypodermic tissue, get absorbed by linear cell particles, and introduce most efficient light chemical and biological reaction ---- enzyme-promoting reaction, which increases cell activity, promotes melanin decomposition and cell metabolism, causes skin to excrete lots of collagen protein and improves white blood cells bacterium-killing capability so as to achieve treatment effects like skin whitening, skin freshening, wrinkle removing, anti-aging, etc. When such light sources are applied to treat dark sores, they are absorbed in large quantity by the acne bacilli that reproduce light-sensitive substances; through killing acne propionic acid bacilli, skin acnes are subsequently removed.